Find freshwater flounder for sale at Live Fish Store, one of the most unusual bottom dwellers you can add to an aquarium. These flat, camouflaged fish glide across the sand, bury themselves and even cling to the glass, a favorite oddball for hobbyists who want something different. Order online and we ship overnight to your door.
Why buy freshwater flounder from Live Fish Store
- Healthy oddballs: selected for good condition and active feeding behavior.
- Overnight shipping: live orders ship via FedEx Priority Overnight or UPS Next Day Air.
- Live arrival guarantee: every flounder is covered from our door to yours.
- Free shipping on $80+: qualifying aquatic-life orders ship free within the USA.
Choosing the right freshwater flounder for your tank
Most flounders sold for freshwater aquariums stay only a few inches long and are comfortable in a 20 to 30 gallon tank with a fine sand bed to bury into. Many species sold as freshwater flounder come from estuaries, so they often do best long term in hard water with a little aquarium salt or lightly brackish conditions. Keep the water clean and at a moderate temperature, generally 72 to 78°F.
Flounders are ambush feeders that rely on smell and touch rather than speed, so offer live or frozen bloodworms, blackworms and brine shrimp after lights out, and make sure faster tankmates do not eat everything first. They are peaceful but should not be housed with aggressive fish or anything small enough to be swallowed.
Shipping and live arrival guarantee
Freshwater flounder ship overnight via FedEx Priority Overnight or UPS Next Day Air, carefully packed for the trip. If a fish arrives DOA, report it within 2 hours of delivery for store credit or a replacement under our live arrival guarantee. Qualifying aquatic-life orders of $80 or more ship free within the USA.
Frequently asked questions
Are freshwater flounders good for beginners?
They suit keepers with a little experience, mainly because they need target feeding and a calm tank.
What do freshwater flounders eat?
Live and frozen foods such as bloodworms, blackworms, brine shrimp and mysis shrimp; some learn to take sinking pellets.
Do freshwater flounders need salt?
Many tolerate pure freshwater when young but thrive with a little aquarium salt or mildly brackish water, so research your species if you plan a strictly freshwater tank.
Popular Freshwater Flounder
